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  5. Industrial Electrical Controls & Automation
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  9. Thermal Units
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Thermal Units by SIEMENS (25 items)

Siemens Heater Element, Trip Class 20, Thermal SMFH41
Siemens

Heater Element, Trip Class 20, Thermal

Zoro # G4330718
Mfr # SMFH41
product price:  $37.56
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH33
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330359
Mfr # SMFH33
product price:  $24.22
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH30
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330270
Mfr # SMFH30
product price:  $26.99
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH18
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330404
Mfr # SMFH18
product price:  $24.15
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH28
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4327376
Mfr # SMFH28
product price:  $28.92
/ea
Siemens Heater, Trip Class 20, Thermal SMFH29
Siemens

Heater, Trip Class 20, Thermal

Zoro # G4327349
Mfr # SMFH29
product price:  $30.95
/ea
Siemens Heater Element, Trip Class 20, Thermal SMFH09
Siemens

Heater Element, Trip Class 20, Thermal

Zoro # G4330867
Mfr # SMFH09
product price:  $25.55
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH12
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330788
Mfr # SMFH12
product price:  $26.97
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH10
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330849
Mfr # SMFH10
product price:  $23.39
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH17
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4328776
Mfr # SMFH17
product price:  $24.65
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH36
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330316
Mfr # SMFH36
product price:  $30.59
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH16
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330368
Mfr # SMFH16
product price:  $32.25
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH03
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330246
Mfr # SMFH03
product price:  $27.69
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH11
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330815
Mfr # SMFH11
product price:  $26.69
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH14
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330395
Mfr # SMFH14
product price:  $25.49
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH22
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330340
Mfr # SMFH22
product price:  $23.99
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH20
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4325459
Mfr # SMFH20
product price:  $24.79
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH04
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4328767
Mfr # SMFH04
product price:  $30.19
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH21
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4326414
Mfr # SMFH21
product price:  $26.19
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH06
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330745
Mfr # SMFH06
product price:  $27.39
/ea
Sold in mult. of 12 for $328.68
Siemens Heater, Trip Class 20, Thermal SMFH50
Siemens

Heater, Trip Class 20, Thermal

Zoro # G4327209
Mfr # SMFH50
product price:  $22.45
/ea
Siemens Heater Packs and Elements E52
Siemens

Heater Packs and Elements

Zoro # G121849790
Mfr # E52
product price:  $9.25
/ea
Siemens Heater Packs and Elements G30T34
Siemens

Heater Packs and Elements

Zoro # G416262679
Mfr # G30T34
product price:  $8.75
/ea
Siemens Heater Packs and Elements E29
Siemens

Heater Packs and Elements

Zoro # G021856126
Mfr # E29
product price:  $28.99
/ea
Siemens Heater Packs and Elements E76
Siemens

Heater Packs and Elements

Zoro # G921854727
Mfr # E76
product price:  $137.99
/ea
Thermal Units by SIEMENS (25 items)
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About Thermal Units

Motors used in industrial manufacturing can be easily overloaded—and that’s where a thermal unit can really help you out. Thermal units protect motors by tripping or shutting off circuits when temperatures get too hot, which can very quickly damage or totally disable a motor. Overload relays are available as well. If you need a motor starter in addition to your thermal unit, check out our magnetic motor starters and manual motor starters.

Related Categories

Motor Starters, Enclosures & AccessoriesElectrical Contactors & ContactsMotor Overload RelaysManual Motor SwitchesSwitches
Electrical RelaysLighting PhotocontrolsProximity SensorsSensor AccessoriesElectromechanical Timers
amerex b500cc 103eaton thermal unitsb82 beltbayou classic b300
dayton a65b625 motorcutler hammer thermal unitb140 beltfasco a163

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